Organohalogen Compounds in the Environment (OCR A-Level Chemistry A): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What key property makes organohalogen compounds persist in the environment for long periods?
What key property makes organohalogen compounds persist in the environment for long periods?
High chemical stability
At what altitude range is the ozone layer located in the stratosphere?
At what altitude range is the ozone layer located in the stratosphere?
10-40 km
Which organohalogen compound is used to manufacture PVC plastic?
Which organohalogen compound is used to manufacture PVC plastic?
Vinyl chloride
What harmful effect can UV-B radiation cause to living cells?
What harmful effect can UV-B radiation cause to living cells?
Genetic damage
Why are CFCs remarkably stable compounds?
Why are CFCs remarkably stable compounds?
Strong carbon-halogen bonds
Which bond in CFC molecules breaks first during photodissociation in the stratosphere?
Which bond in CFC molecules breaks first during photodissociation in the stratosphere?
bond
In the chlorine radical mechanism, what does react with in propagation step 1?
In the chlorine radical mechanism, what does react with in propagation step 1?
Ozone
Approximately how many ozone molecules can a single CFC molecule destroy?
Approximately how many ozone molecules can a single CFC molecule destroy?
100,000
What are the sources of nitrogen oxide radicals that contribute to ozone depletion?
What are the sources of nitrogen oxide radicals that contribute to ozone depletion?
Lightning strikes and aircraft
Which alternatives to CFCs are used for refrigeration and do not contain chlorine?
Which alternatives to CFCs are used for refrigeration and do not contain chlorine?
Hydrocarbons, ammonia,